JP6173799B2 - Molded product and molding method - Google Patents

Description

  The present invention relates to a molded product having minute irregularities on an outer surface.

  In a molded product formed by blow molding, in order to make the scratches inconspicuous even if the outer surface is scratched, minute irregularities such as a texture pattern may be formed on the outer surface of the molded product (for example, patents) Literature 1: JP 2001-260213 A).

  Further, as a method for molding a molded product, there is a method in which a molten resin is vacuum-sucked into a mold (for example, Patent Document 2: WO2009 / 136489). The above forming method is referred to as a vacuum forming method.

JP 2001-260213 A WO2009 / 13689

  At present, attempts are being made to form a molded article having minute irregularities on the outer surface by sucking resin into a mold using a vacuum forming method. By forming minute irregularities on the outer surface, it is difficult for the outer surface to be scratched, and even if the outer surface is scratched, the scratch can be made inconspicuous. In addition, design properties such as aesthetic appearance can be improved.

  However, it has been found that when a molded product having minute irregularities is molded using the vacuum molding method, wrinkles are likely to occur at unspecified positions around the molded product and on the standing wall that constitutes the hinge and the like. A standing wall refers to a wall that stands up from one wall to the other. If wrinkles occur at unspecified positions on the standing wall, the aesthetic appearance of the molded product will be impaired, which is not preferable in terms of design.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a molded product and a molding method in which generation of wrinkles on a standing wall is suppressed in a molded product in which minute irregularities are formed on the outer surface.

  In order to achieve this object, the present invention has the following features.

The molded product according to the present invention is
A hinge part is formed by forming the compression part, and a molded product in which minute irregularities are formed on at least one outer surface of the front wall and the back wall,
The one wall on which the minute irregularities are formed has a standing wall that stands up from the wall toward the other wall,
At least a part of the standing wall is provided with an uneven portion where the minute unevenness is not formed ,
One end of the standing wall is connected to a compression part in which one wall is compressed in the hinge part,
The uneven portion is connected to at least the compression portion.

The molding method according to the present invention includes:
The molten resin is sucked with a mold and clamped, and a compression part is formed to form a hinge part, and at least one outer surface of the front wall and the back wall has minute irregularities formed. A molding method for molding a molded article,
The mold for forming the micro unevenness has an unevenness non-forming portion for not forming the micro unevenness in at least a part of the standing wall forming portion for forming a standing wall rising from one wall toward the other wall. Have
The resin is sucked with the mold and shaped into a cavity shape, and then clamped.

  ADVANTAGE OF THE INVENTION According to this invention, the molded article which suppressed generation | occurrence | production of the wrinkle to a standing wall can be obtained in the molded article in which the micro unevenness | corrugation was formed in the outer surface.

1 is an overall perspective view of a laminated panel 1 of the present embodiment. It is sectional drawing of the laminated panel 1 of this embodiment, and is sectional drawing of the laminated panel 1 at the time of cut | disconnecting by the 2A-2A line | wire shown in FIG. 5 is a diagram illustrating a configuration example of a hinge mechanism 7. FIG. It is a figure which shows the structural example of the circumference | surroundings of the hinge mechanism formation part 119 for forming the hinge mechanism 7 of this embodiment, (a) shows the state at the time of clamping the division mold 32, (b) Shows a state when the resin P2 is cooled after the divided mold 32 is clamped. FIG. 7 is a diagram showing a configuration example around a hinge mechanism forming portion 119 that forms a hinge mechanism 7 that generates wrinkles, which is a problem of the present invention, and (a) shows a state when the divided mold 32 is clamped (B) shows a state when the resin P2 is cooled after the divided mold 32 is clamped. It is a figure which shows the structural example of the circumference | surroundings of the pinch-off part 118 which forms the surrounding wall 4 of this embodiment, (a) shows the state at the time of clamping the division mold 32, (b) is a division mold. The state when the resin P2 is cooled after the mold 32 is clamped is shown. It is a diagram showing a configuration example of the periphery of the pinch-off portion 118 that forms the peripheral wall 4 where wrinkles that are the subject of the present invention, (a) shows a state when the divided mold 32 is clamped, ( b) shows a state when the resin P2 is cooled after the divided mold 32 is clamped. It is a figure which shows the example of the method of shape | molding the core material 6, (a) shows the side surface structural example of the split mold 41 which shape | molds the core material 6 (8A-8A sectional drawing shown to (b)), (b ) Shows an example of the structure of the split mold 41 shown in (a) when viewed from the top (extruding head 40 side). It is a figure which shows the state which closed the division mold 41 shown in FIG.8 (b). FIG. 10 is a view showing a state in which a split mold 41 shown in FIG. 9 is opened. FIG. 2 is a diagram showing an example of a method for forming a laminated panel 1 and shows a state where a decorative member 5 is arranged. 3 is a view showing a state in which a resin P2 forming the front wall 2 and the back wall 3 of the laminated panel 1 is extruded. FIG. FIG. 6 is a view showing a state in which a frame member 128 is in contact with a resin P2. 6 is a view showing a state in which a resin P2 is in contact with a split mold 32. FIG. 6 is a view showing a state in which one resin P2 is shaped into a shape along a cavity 116. FIG. FIG. 3 is a diagram showing a state in which a core material 6 is in contact with one resin P2. 6 is a view showing a state in which the other resin P2 is shaped into a shape along a cavity 116. FIG. 6 is a view showing a state in which a resin P2 is clamped by a split mold 32. FIG. FIG. 6 is a view showing a state where a split mold 32 is opened. It is a figure which shows the structural example of the circumference | surroundings of the pinch-off part 118 which forms the surrounding wall 4 of 2nd Embodiment, (a) shows the state at the time of clamping the division mold 32, (b) The state when the resin P2 is cooled after the divided mold 32 is clamped is shown, and (c) shows a configuration example around the peripheral wall 4 after molding. It is a figure which shows the structural example of the circumference | surroundings of the hinge mechanism formation part 119 for forming the hinge mechanism 7 of 3rd Embodiment, (a) shows the state at the time of clamping the division mold 32, ( (b) shows a state when the resin P2 is cooled after the divided mold 32 is clamped, and (c) shows a configuration example around the hinge mechanism 7 after molding. It is a figure which shows the structural example of the circumference | surroundings of the pinch-off part 118 which forms the surrounding wall 4 of 3rd Embodiment, (a) shows the state at the time of clamping the division mold 32, (b) The state when the resin P2 is cooled after the divided mold 32 is clamped is shown, and (c) shows a configuration example around the peripheral wall 4 after molding.

(Outline of Embodiment of Molded Product According to the Present Invention)
First, the outline | summary of embodiment of the molded article concerning this invention is demonstrated, referring FIGS. 1-3. FIG. 1 shows an example of the overall configuration of a molded product 1 according to the present invention, FIG. 2 shows an example of a cross-sectional configuration of the molded product 1, and FIG. 3 shows a configuration example of a hinge mechanism 7.

  The molded product 1 according to the present invention is a molded product 1 in which minute irregularities are formed on the outer surface of at least one of the front wall 2 and the back wall 3.

  As shown in FIGS. 2 and 3, the molded product 1 according to the present invention has one wall 3 on which minute irregularities are formed, having a standing wall 8 erected from the wall 3 toward the other wall 2, At least a part of the standing wall 8 is provided with an uneven portion 12 in which minute unevenness is not formed.

  The standing wall 8 constituting the molded product 1 according to the present invention can be molded using a mold 32 shown in FIGS. FIG. 4 shows an example of the configuration of the mold 32 that forms the hinge mechanism 7 of the molded product 1, and FIG. 6 shows an example of the configuration of the mold 32 that forms the peripheral wall 4 of the molded product 1. As shown in FIGS. 4 and 6, the mold 32 for molding the molded product 1 according to the present invention is provided with a standing wall at a portion where the hinge mechanism 7 of the molded product 1 is formed and a portion where the peripheral wall 4 is formed. 8 is provided with a standing wall forming portion 120 for forming 8.

  A mold 32 for molding the molded article 1 according to the present invention has a concave-convex non-forming portion 123 for not forming minute irregularities on at least a part of the standing wall forming portion 120 for forming the standing wall 8, and the mold The resin P2 is sucked and clamped at 32, and the molded product 1 including the standing wall 8 having the uneven portion 12 where the fine unevenness is not formed at the portion corresponding to the uneven portion 123 is formed.

  By having the uneven portion 12 on the standing wall 8, it is possible to prevent the resin P2 from being displaced at the time of molding, so that the occurrence of wrinkles on the standing wall 8 can be suppressed. As a result, in the molded product 1 in which minute irregularities are formed on the outer surface, generation of wrinkles on the standing wall 8 can be suppressed, and the molded product 1 excellent in design can be obtained. Hereinafter, embodiments of a molded article 1 according to the present invention will be described in detail with reference to the accompanying drawings. In the following embodiment, the molded product 1 will be described as a laminated panel 1. In the following embodiments, a case where a texture pattern is formed as minute unevenness will be described. However, the fine irregularities formed on the outer surface are not limited to the grain pattern (leather pattern, wood grain pattern, rock grain pattern, sand grain pattern, plain pattern, geometric pattern, etc.) formed by the graining process. Any pattern can be applied as long as it is a concavo-convex pattern formed on the outer surface, and various concavo-convex patterns are also included.

(First embodiment)
<Configuration example of laminated panel 1>
First, a configuration example of the laminated panel 1 of the present embodiment will be described with reference to FIGS. The laminated panel 1 of the present embodiment is used as a trunk partition plate or flooring in an automobile or the like.

  FIG. 1 is an overall perspective view of the laminated panel 1. FIG. 2 is a cross-sectional view of the laminated panel 1, and is a cross-sectional view of the laminated panel 1 taken along line 2A-2A shown in FIG. FIG. 3 is a diagram illustrating a configuration example of the hinge mechanism 7.

  As shown in FIGS. 1 and 2, the laminated panel 1 of the present embodiment includes a front wall 2, a back wall 3, and a peripheral wall 4. The front wall 2 is a wall constituting the front side of the laminated panel 1. The back wall 3 is a wall constituting the back side of the laminated panel 1. The peripheral wall 4 is a wall constituting the periphery of the laminated panel 1, and as shown in FIG. 2, a standing wall 8 rising from the back wall 3 toward the front wall 2, and from the front wall 2 toward the back wall 3 It has a bent shoulder wall 9 and a parting line PL. The parting line PL is formed by a portion in which the resin constituting the front wall 2 and the back wall 3 is sandwiched and compressed by the pinch-off portion of the split mold.

  As shown in FIG. 1, the laminated panel 1 of this embodiment has a decorative member 5 attached to the surface of the front wall 2 for decoration, etc. As shown in FIG. 6, the front wall 2 and the decorative member 5 form a laminated structure.

  The resin constituting the front wall 2 and the back wall 3 is not particularly limited, and a known resin can be applied. For example, engineering, such as polyethylene resin, polypropylene resin, ethylene-vinyl acetate copolymer, vinyl chloride resin, ABS resin (acrylonitrile-styrene-butadiene resin), polyamide resin, polystyrene resin, polyester resin, polycarbonate resin, modified polyphenylene ether, etc. Plastic or the like is preferable, and fillers such as glass fiber, carbon fiber, calcium carbonate, talc, and mica can be appropriately added. However, the resin constituting the front wall 2 and the back wall 3 is preferably a resin that is higher than the rigidity of the core material 6 from the viewpoint of ensuring the rigidity of the laminated panel 1 as a whole, particularly the bending rigidity. In addition, it is preferable to use a resin material having a high melt tension for the front wall 2 and the back wall 3 from the viewpoint of preventing variation in thickness due to drawdown, neck-in, etc. In order to improve the transferability and followability of the resin, it is preferable to use a resin having high fluidity.

  The core material 6 can be a known material. For example, the core material 6 can be composed of a known resin similar to the front wall 2 and the back wall 3 and a material constituting the decorative member 5 described later. Thereby, the shape of the core material 6 can be formed into a desired shape. The core material 6 is preferably composed of a foam. Thereby, weight reduction of the laminated panel 1 can be achieved. In this case, the foam is preferably composed of a closed cell structure (closed cell ratio is 70% or more) having a plurality of cell cells with a foaming ratio of 2.5 to 5.0 times. In addition, as a foaming agent applicable when shape | molding a foam, a physical foaming agent, a chemical foaming agent, and its mixture are mentioned. Physical foaming agents include inorganic physical foaming agents such as air, carbon dioxide, nitrogen gas, and water, and organic physical foaming agents such as butane, pentane, hexane, dichloromethane, dichloroethane, and their supercritical fluids. Can be applied. The supercritical fluid is preferably made of carbon dioxide, nitrogen, etc. If it is nitrogen, the critical temperature is -149.1 ° C, the critical pressure is 3.4 MPa or more, and if carbon dioxide, the critical temperature is 31 ° C, the critical pressure is 7.4 MPa or more. Can be created.

  The material constituting the decorative member 5 is not particularly limited, and a known material can be applied. For example, knitted fabrics, woven fabrics, non-woven fabrics, or polyvinyl chloride (PVC), thermoplastic polyurethane elastomer (TPU) or fibers obtained by processing natural fibers, recycled fibers, semi-synthetic fibers, synthetic fibers and blends thereof. A thermoplastic elastomer (TPE) such as a thermoplastic polyolefin elastomer (TPO), a resin sheet made of a thermoplastic resin such as a polyethylene polyolefin resin, and a laminate sheet thereof can be appropriately selected.

  The laminated panel 1 of the present embodiment has a hinge mechanism 7 that is formed by compressing and thinning from the back wall 3 toward the front wall 2, and the laminated panel 1 rotates around the hinge mechanism 7 as a rotation axis. It is possible. As shown in FIG. 2, the hinge mechanism 7 includes a standing wall 8 in which a part of the back wall 3 is erected from the back wall 3 toward the front wall 2, and layers constituting the laminated panel 1 (the back wall 3, the core material 6 And a compression portion 10 obtained by compressing and thinning the front wall 2 and the decorative member 5). Both ends of the compression portion 10 of the back wall 3 are connected to one end of the standing wall 8, and the two standing walls 8 can be rotated about the compression portion 10 as a rotation axis.

  As shown in FIG. 3, the hinge mechanism 7 of the laminated panel 1 of the present embodiment is configured by sandwiching a hinge portion 7 a formed of a core material 6 between a back wall 3 and a front wall 2. The strength of the mechanism 7 is improved. The hinge portion 7a is formed by compressing and thinning the core member 6 from the back wall 3 side toward the front wall 2 side.

  The thickness A of the compression portion 10 constituting the hinge mechanism 7 in the case of the configuration shown in FIG. 3 is preferably configured in a range of at least 0.5 to 0.7 mm. In this case, the thickness a1 of the front wall 2 constituting the compression part 10 is configured in the range of 0.2 to 0.25 mm, the thickness a2 of the core material 6 is configured in the range of 0.1 to 0.2 mm, and the thickness of the back wall 3 It is preferable to configure a3 in the range of 0.2 to 0.25 mm. As a result, the hinge mechanism 7 having a strength that can withstand bending of the laminated panel 1 can be obtained.

  The outer surface of the laminated panel 1 of the present embodiment has a textured portion 11 in which a textured pattern that is a micro uneven surface is formed. For this reason, even when a scratch or the like is generated on the outer surface of the laminated panel 1, since the textured portion 11 is provided, the scratch or the like can be made inconspicuous. In addition, it is possible to obtain a laminated panel 1 having an attractive appearance and excellent design.

  The embossed portion 11 can be formed when the laminated panel 1 is molded. Specifically, a textured portion for forming a textured pattern that is a micro uneven surface is provided in the cavity of the split mold, and the resin that forms the outer surface of the laminated panel 1 is provided in the textured portion. By tightening with the divided mold, the embossed portion 11 corresponding to the embossed portion can be formed on the laminated panel 1. The embossed pattern of the embossed portion 11 is not particularly limited, and can be constituted by an arbitrary pattern. By providing an embossed portion for forming an arbitrary embossed pattern in the cavity of the split mold, Any wrinkle pattern corresponding to the wrinkled formation portion can be formed.

  As shown in FIG. 3, the standing wall 8 constituting the hinge mechanism 7 of the laminated panel 1 has a wrinkled portion 11 in which a wrinkle pattern is formed and a wrinkle-free portion 12 in which a wrinkle pattern is not formed. Are configured. Unlike the wrinkled portion 11, the wrinkle-free portion 12 constitutes a smoothed surface having no wrinkled pattern. The wrinkle-free portion 12 can be formed when the laminated panel 1 is formed, like the wrinkled portion 11. Specifically, no wrinkles are not formed on the standing wall 8 by forming a wrinkle-free portion in the split mold cavity to prevent the wrinkle pattern from being formed, and clamping the resin with the split mold having the wrinkle-free portion. A wrinkle-free portion 12 corresponding to the portion can be formed.

  3 is formed from a position α1 connected to the compression section 10 to a position α2 of the curved end portion of the upright wall 8. The position α2 indicates a boundary portion between the straight portion of the standing wall 8 and the curved portion of the standing wall 8, and indicates the tapered end portion of the standing wall 8.

  In FIG. 3, the wrinkleless portion 12 is formed from the position α1 connected to the compression portion 10 to the position α2 of the curved end portion of the standing wall 8, but from the position α1 to the position α2 where the wrinkleless portion 12 is formed. The distance is preferably at least a distance corresponding to the thickness T of the resin P2 constituting the back wall 3. In FIG. 3, the thickness of the resin P2 constituting the back wall 3 is shown as the thickness T of the resin P2, but the thickness T of the resin P2 constituting the back wall 3 is shown. As shown in FIG. 12, this means the thickness of the thickest portion of the resin P2 on the back wall 3 before compression that forms the compressed portion 10 extruded from the T die 28. In the present embodiment, when the resin P2 constituting the back wall 3 is clamped by the split mold 32, the resin P2 is displaced and wrinkles are generated. When the thickness T of the resin P2 constituting the back wall 3 is large, the amount of deviation of the resin P2 that occurs when the resin P2 is clamped with the split mold 32 increases, and wrinkles occur on the standing wall 8. It becomes easy to do. The amount of deviation of the resin P2 generated when the resin P2 is clamped with the split mold 32 is proportional to the thickness T of the resin P2 constituting the back wall 3. For this reason, it is preferable that the region (the region from α1 to α2 shown in FIG. 3) where the wrinkle-free portion 12 is formed be at least a distance corresponding to the thickness T of the resin P2 constituting the back wall 3. . Thereby, generation | occurrence | production of wrinkles can be suppressed. In FIG. 3, the wrinkle-free portion 12 is continuously formed from the position α1 connected to the compression portion 10 to the position α2 of the curved end portion of the upright wall 8, but it may be partially provided. .

  As shown in FIG. 4, the standing wall 8 of the present embodiment has a wrinkle-forming portion 122 for forming a wrinkle pattern and a wrinkle for not forming a wrinkle pattern with respect to the standing wall forming portion 120 for forming the rising wall 8. The non-forming portion 123 is provided, and the resin P2 is clamped by the split mold 32 provided with the wrinkle-free forming portion 122 and the wrinkle-free forming portion 123. The existence part 11 and the grain-free part 12 corresponding to the grain-free-formation part 123 can be formed. By forming the wrinkle-free portion 12 on the standing wall 8, wrinkles can be prevented from occurring on the standing wall 8. FIG. 4 shows a configuration example around the hinge mechanism forming portion 119 for forming the hinge mechanism 7, (a) shows a state when the divided mold 32 is clamped, and (b) shows a divided state. The state when the resin P2 is cooled after the mold 32 is clamped is shown.

  When the resin P2 is clamped with the split mold 32, the ridges are formed by the resin P2 that is displaced. The wrinkle-free portion 123 for forming the wrinkle-free portion 12 is configured to have a flat surface without unevenness, so that the contact area between the resin P2 sucked by the split mold 32 and the wrinkle-free portion 123 is large. The resin P2 can be prevented from shifting when the resin P2 is clamped with the split mold 32. As a result, generation of wrinkles can be suppressed. For this reason, it is possible to prevent wrinkles from occurring on the standing wall 8 by forming the wrinkle-free portion 12 on the standing wall 8.

  As shown in FIG. 3, the hinge mechanism 7 has two standing walls 8 and a compression portion 10, and one end of the two standing walls 8 is connected to the compression portion 10. The wrinkle-free portion 12 constituting the upright wall 8 is connected to the compression portion 10.

  As shown in FIG. 4, the hinge mechanism 7 is provided with a hinge mechanism forming portion 119 for forming the hinge mechanism 7 in the cavity 116 of the split mold 32, and the split mold 32 provided with the hinge mechanism forming portion 119 is made of resin. The hinge mechanism 7 can be formed by clamping P2. The hinge mechanism forming part 119 includes a standing wall forming part 120 for forming the standing wall 8 and a compression forming part 121 for forming the compression part 10, and the standing wall is formed at both ends of the compression forming part 121. The unit 120 is configured.

  Since the compression part 10 constituting the hinge mechanism 7 is formed by compressing and crushing the resin P2 with the compression formation part 121 constituting the hinge mechanism formation part 119, a part of the resin P2 crushed by the compression formation part 121 is partly formed. It is pushed out to the region of the standing wall forming portion 120 provided at both ends of the compression forming portion 121. Since the wrinkle-free forming portion 123 of the standing wall forming portion 120 is provided so as to be connected to the compression forming portion 121, the resin P2 extruded from the compression forming portion 121 can be blocked by the wrinkle-free forming portion 123. This is because the wrinkle-free forming portion 123 is configured with a flat surface having no uneven surface unlike the wrinkled-formed forming portion 122, and has a large contact area with the resin P2 sucked by the divided mold 32, thereby increasing the frictional resistance. Because it can. As a result, generation of wrinkles due to the resin P2 extruded from the compression forming portion 121 can be suppressed. In FIG. 4, the wrinkle-free forming portion 123 is provided so as to be connected to the compression forming portion 121. However, the wrinkle-free forming portion 123 does not need to be connected to the compression forming portion 121, and may be provided at least at a part of the standing wall forming portion 120. If the wrinkle-free forming portion 123 is provided in at least a part of the standing wall forming portion 120, the shift of the resin P2 can be suppressed at the position of the wrinkle-free forming portion 123, and thus generation of wrinkles can be suppressed. . However, in consideration of blocking the resin P2 extruded from the compression forming portion 121, the wrinkle-free forming portion 123 is preferably connected to the compression forming portion 121. Thereby, the resin P2 pushed out from the compression forming portion 121 can be blocked by the end portion of the standing wall forming portion 120 for forming the standing wall 8. As a result, the standing wall 8 with less wrinkles can be formed.

  Since the wrinkle-free portion 12 of the present embodiment is formed from the position α1 connected to the compression portion 10 to the position α2 of the curved end portion of the upright wall 8, the wrinkle-free portion for forming the wrinkle-free portion 12 Similarly, 123 is formed from a position connected to the compression forming portion 121 to a position of a curved end portion of the standing wall forming portion 120. The position of the curved end portion of the standing wall forming portion 120 means the tapered end portion of the standing wall forming portion 120.

  As shown in FIG. 5, when the wrinkle-free forming portion 123 is not provided in the standing wall forming portion 120 but only the wrinkle-forming portion 122 is provided, the resin P2 extruded from the compression forming portion 121 is formed with the wrinkle-forming portion 122. The resin P2 pushed out from the compression forming portion 121 cannot be blocked by the wrinkled forming portion 122. This is because the wrinkled forming portion 122 is configured to have a minute uneven surface, and the contact area with the resin P2 sucked by the divided mold 32 is small and the frictional resistance is reduced. If the resin P2 slides on the wrinkled formation portion 122, excess resin P2 floats from the wrinkled formation portion 122, and a gap 200 is formed between the wrinkled formation portion 122 and the resin P2, and the resin P2 is bent. End up. As a result, the bent portion remains as the ridge 201 on the outer surface of the standing wall 8. FIG. 5 shows an example of the configuration around the hinge mechanism forming portion 119 that forms the hinge mechanism 7 that generates wrinkles, which is the subject of the present invention, and (a) shows the state when the divided mold 32 is clamped. (B) shows a state when the resin P2 is cooled after the split mold 32 is clamped. In FIG. 5A, when the resin P2 is crushed by the hinge mechanism forming portion 119, the resin on the embossed forming portion 122 slips to generate a gap 200. In FIG. Is broken and 皺 201 is generated.

  In the present embodiment, in order to solve the problem of FIG. 5, when the laminated panel 1 having a texture pattern is formed on the outer surface, as shown in FIG. 4, at least the standing wall forming portion 120 for forming the standing wall 8 is used. In part, a wrinkle-free portion 123 for forming the wrinkle-free portion 12 is provided, and the slippage of the resin P2 is suppressed by the wrinkle-free portion 123. Thereby, it is possible to suppress the displacement of the resin P2 at the position of the embossed non-forming portion 123, and to suppress the generation of the wrinkles 201 described above. In FIG. 4, the wrinkle-free forming portion 123 is continuously formed from the position connected to the compression forming portion 121 to the position of the curved end portion of the standing wall forming portion 120. However, as described above, the wrinkle-free forming portion 123 only needs to be formed in at least a part of the standing wall forming portion 120.

  As shown in FIG. 2, the peripheral wall 4 includes a standing wall 8 standing from the back wall 3 toward the front wall 2, a shoulder wall 9 bent from the front wall 2 toward the back wall 3, and a parting line PL. In the same manner as the hinge mechanism 7, it has a standing wall 8.

  As shown in FIG. 6, the peripheral wall 4 includes a shoulder wall forming portion 115 for forming the shoulder wall 9, a standing wall forming portion 120 for forming the standing wall 8, and a pinch-off for forming the parting line PL. The portion 118 can be provided in the split mold 32, and the split mold 32 can be formed by clamping the resin P2 constituting the front wall 2 and the back wall 3. The parting line PL is formed by sandwiching and compressing the resin P2 constituting the front wall 2 and the back wall 3 by the pinch-off portions 118 of the split mold 32. The parting line PL is formed at an intermediate position between the front wall 2 and the back wall 3. One end of the shoulder wall forming portion 115 is connected to the pinch-off portion 118, and one end of the standing wall forming portion 120 is connected to the pinch-off portion 118. FIG. 6 shows an example of the configuration around the pinch-off portion 118 forming the peripheral wall 4, (a) shows a state when the divided mold 32 is clamped, and (b) shows the divided mold 32. The state when the resin P2 is cooled after clamping is shown.

  As with the standing wall 8 constituting the hinge mechanism 7, the standing wall 8 constituting the peripheral wall 4 has a wrinkled portion 11 where a wrinkle pattern is formed and a wrinkle-free portion 12 where a wrinkle pattern is not formed. Configured. For this reason, the standing wall forming portion 120 for forming the standing wall 8 has a wrinkled presence forming portion 122 for forming the wrinkled portion 11 and a wrinkle-free forming portion 123 for forming the wrinkle-free portion 12. And configure.

  Since the wrinkle-free portion 123 of the standing wall forming portion 120 is provided so as to be connected to the pinch-off portion 118, the resin P2 pushed out from the pinch-off portion 118 can be blocked by the wrinkle-free portion 123. As a result, generation of wrinkles due to the resin P2 extruded from the pinch-off portion 118 can be suppressed. 6 is formed from the position connected to the pinch-off portion 118 to the position of the curved end portion of the standing wall forming portion 120. The position of the curved end portion of the standing wall forming portion 120 means the tapered end portion of the standing wall forming portion 120. The wrinkle-free forming portion 123 does not need to be connected to the pinch-off portion 118 and may be provided at least at a part of the standing wall forming portion 120. If at least a part of the standing wall forming part 120 is provided with the no-wrinkle-forming part 123, the shift of the resin P2 can be suppressed at the position of the wrinkle-free forming part 123. it can. However, in view of blocking the resin P2 pushed out from the pinch-off portion 118, the wrinkle-free portion 123 is preferably connected to the pinch-off portion 118. Thereby, the resin P2 pushed out from the pinch-off portion 118 can be blocked by the end portion of the standing wall forming portion 120 for forming the standing wall 8. As a result, the standing wall 8 with less wrinkles can be formed.

  As shown in FIG. 7, when only the wrinkle-free forming portion 122 is provided in the standing wall forming portion 120 without providing the wrinkle-free forming portion 123, the resin P2 extruded from the pinch-off portion 118 The resin P2 that slides on the concavo-convex surface and that is pushed out from the pinch-off portion 118 cannot be blocked by the embossed portion 122. This is because the wrinkled forming portion 122 is configured to have a minute uneven surface, and the contact area with the resin P2 sucked by the divided mold 32 is small and the frictional resistance is reduced. In addition, if the resin P2 constituting the front wall 2 side is sucked into the split mold 32 before the resin P2 constituting the back wall 3 side, the resin P2 constituting the front wall 2 side is first. When the resin P2 is crushed and compressed by the pinch-off portion 118, the resin P2 constituting the front wall 2 side hardly moves, and the resin P2 constituting the back wall 3 side is pushed out from the pinch-off portion 118. As a result, the extruded resin P2 slides on the uneven surface that forms the embossed portion 122. If the resin P2 slides on the wrinkled formation portion 122, excess resin P2 floats from the wrinkled formation portion 122, and a gap 200 is formed between the wrinkled formation portion 122 and the resin P2, and the resin P2 is bent. End up. As a result, the bent portion remains as the ridge 201 on the outer surface of the standing wall 8. FIG. 7 is a view showing a configuration example of the periphery of the pinch-off portion 118 forming the peripheral wall 4 where wrinkles, which is the subject of the present invention, is a state when the split mold 32 is clamped (B) shows a state when the resin P2 is cooled after the divided mold 32 is clamped. In FIG. 7A, when the resin P2 is crushed by the pinch-off portion 118, the resin on the embossed portion 122 slips and a gap 200 is generated. In FIG. 7B, the resin P2 is broken by the gap 200.皺 201 has occurred.

  In the present embodiment, in order to solve the problem of FIG. 7, as shown in FIG. 6, no wrinkle formation for forming the wrinkle free portion 12 is formed on at least a part of the vertical wall forming portion 120 for forming the vertical wall 8. The portion 123 is provided, and the slippage of the resin P2 is suppressed by the wrinkle-free portion 123. Thereby, it is possible to suppress the displacement of the resin P2 at the position of the embossed non-forming portion 123, and to suppress the generation of the wrinkles 201 described above. In FIG. 6, the wrinkle-free forming portion 123 is continuously formed from the position connected to the pinch-off portion 118 to the position of the curved end portion of the standing wall forming portion 120. However, as described above, the wrinkle-free forming portion 123 only needs to be formed in at least a part of the standing wall forming portion 120. The wrinkle-free portion 123 is preferably at least a distance corresponding to the thickness of the resin P2 constituting the back wall 3.

<Example of manufacturing method of laminated panel 1>
Next, an example of a method for manufacturing the laminated panel 1 of the present embodiment will be described with reference to FIGS.

  8-10 is a figure which shows the example of the method of shape | molding the core material 6, FIG.8 (a) shows the example of a side surface structure of the split mold 41 which shape | molds the core material 6 (FIG.8 (b)). 8A-8A cross-sectional view) and FIG. 8B show a configuration example when the split mold 41 shown in FIG. 8A is viewed from the upper surface (extruding head 40 side). FIG. 9 shows a state where the split mold 41 shown in FIG. 8B is closed. FIG. 10 shows a state where the split mold 41 shown in FIG. 9 is opened.

  FIGS. 11-19 is a figure which shows the example of a method of shape | molding the laminated panel 1, FIG. 11 shows the state which has arrange | positioned the decorative member 5. FIG. FIG. 12 shows a state where the resin P2 forming the front wall 2 and the back wall 3 of the laminated panel 1 is extruded. FIG. 13 shows a state in which the frame member 128 is in contact with the resin P2. FIG. 14 shows a state in which the resin P2 is in contact with the split mold 32. FIG. 15 shows a state in which one resin P2 is shaped into a shape along the cavity 116. FIG. 16 shows a state in which the core material 6 is in contact with one resin P2. FIG. 17 shows a state in which the other resin P2 is shaped into a shape along the cavity 116. FIG. 18 shows a state in which the resin P2 is clamped by the split mold 32. FIG. FIG. 19 shows a state where the split mold 32 is opened.

  First, as shown in FIG. 8, the molten cylindrical resin P1 is extruded vertically downward from the extrusion head 40, and the molten cylindrical resin P1 is supplied between the two split molds 41 at the open position. To do. The resin P1 is a resin for forming the core material 6.

  Next, as shown in FIG. 9, the two divided molds 41 are moved from the open position to the closed position, and the two divided molds 41 are clamped. Thereby, a sealed space is configured.

  Next, the resin P1 in the sealed space is pressed toward the cavity 44 and shaped along the cavity 44 through blow molding, vacuum molding, or a combination thereof through the sealed space configured as described above. Is done.

  Specifically, in the case of blow molding, the resin P1 is pressed toward the cavity 44 by inserting a blow pin (not shown) into the resin P1 and introducing a pressurized fluid therein. In the case of vacuum forming, a flow path (not shown) that opens to the cavity 44 is provided in the split mold 41, and the resin P1 is sucked into the split mold 41 through this flow path.

  As a result, the core material 6 is molded from the molten cylindrical resin P1. Then, as shown in FIG. 9, a hinge forming portion 42 provided on the surface of one cavity 44A is inserted on the back side of the resin P1, and the resin P1 is compression-molded, whereby the hinge is formed on the back side of the core material 6. Part 7a is formed. The hinge forming part 42 is for forming the hinge part 7a in the core member 6. As shown in FIG. 8A, the hinge forming portion 42 is preferably provided in the split mold 41 in the same direction as the resin P1. Thereby, generation | occurrence | production of bent meat can be reduced. However, the hinge forming part 42 can also be provided in the split mold 41 in a direction orthogonal to the resin P1.

  Next, as shown in FIG. 10, the split mold 41 is moved from the closed position to the open position, the two split molds 41 are opened, and the molded core material 6 is taken out from between the split molds 41. . Thereby, the core material 6 having the hinge portion 7a can be formed.

  Next, as shown in FIG. 11, the decorative member 5 is inserted between the one split mold 32 and the one frame member 128 from the side of the two split molds 32. The decorative member 5 is temporarily fixed so as to cover the cavity 116 of one split mold 32 by a provided temporary fixing pin (not shown).

  Next, as shown in FIG. 12, a resin P2 for forming the front wall 2 and the back wall 3 of the laminated panel 1 is extruded from a T die 28, and the extruded resin P2 is passed through a pair of rollers 30 to be resin. The thickness of P2 is adjusted and suspended between the pair of split molds 32.

  When the resin P2 is disposed between the divided molds 32, the frame member 128 is moved toward the corresponding resin P2 by a frame member driving device (not shown), and the frame member 128 is moved as shown in FIG. The resin P2 comes into contact with the resin P2 and is held by the frame member 128.

  Next, the frame member 128 is moved toward the split mold 32, and as shown in FIG. 14, the resin P2 is brought into contact with the pinch-off portion 118 of the split mold 32 and sealed by the resin P2, the pinch-off portion 118, and the cavity 116. A space 117 is formed. Further, the core material 6 held by the suction disk 31 of the manipulator (not shown) is inserted between the divided molds 32 as shown in FIG.

  Next, the inside of the sealed space 117 is sucked through the divided mold 32, and one resin P2 is pressed against the cavity 116, and the one resin P2 is shaped into a shape along the cavity 116 as shown in FIG. To do. Thus, one resin P2 is welded to the decorative member 5 interposed between the one resin P2 and the cavity 116. In the present embodiment, a flow path that opens to the cavity 116 is provided inside the split mold 32, the inside of the sealed space 117 is sucked through the flow path, and one resin P2 is shaped into a shape along the cavity 116.

  Further, the manipulator is moved toward the right split mold 32, and as shown in FIG. 16, the core material 6 is pressed against one resin P2 adsorbed by the cavity 116 of the right split mold 32, and the core material 6 is pressed. Is welded to one resin P2.

  Next, the suction plate 31 is detached from the core material 6, the manipulator is pulled out from between the two divided molds 32, the inside of the sealed space 117 is sucked through the divided mold 32, and the other resin P2 is drawn into the cavity 116. The other resin P2 is shaped into a shape along the cavity 116, as shown in FIG. In the present embodiment, a flow path that opens to the cavity 116 is provided inside the split mold 32, the inside of the sealed space 117 is sucked through this flow path, and the other resin P2 is shaped into a shape along the cavity 116. In addition, since the cavity 116 has a hinge mechanism forming portion 119 for forming the hinge mechanism 7, the other resin P2 in contact with the hinge mechanism forming portion 119 is along the hinge mechanism forming portion 119. Shape to shape.

  Next, the two split molds 32 are clamped by the mold driving device, and the core material 6 is pressed against the other resin P adsorbed by the cavity 116 of the left split mold 32 as shown in FIG. The core material 6 is welded to the other resin P2. Also, the parting line PL is formed by sandwiching and compressing the two resins P2 by the pinch-off portion 118.

  The cavity 116 of the left split mold 32 forming the back wall 3 has a hinge mechanism forming part 119 for forming the hinge mechanism 7, and by clamping the two split molds 32, The hinge mechanism 7 corresponding to the shape of the hinge mechanism forming portion 119 can be formed at a location corresponding to the hinge mechanism forming portion 119. As shown in FIG. 4, the hinge mechanism forming portion 119 includes a standing wall forming portion 120 for forming the standing wall 8 and a compression forming portion 121 for forming the compression portion 10. A hinge mechanism 7 having 8 and the compression part 10 can be formed. Further, since the standing wall forming portion 120 is configured to include the wrinkle-free forming portion 122 and the wrinkle-free forming portion 123, the wrinkle-free portion corresponding to the wrinkle-free forming portion 123 is provided at the place where the wrinkle-free forming portion 123 is provided. The standing wall 8 having the textured portion 11 corresponding to the textured formation portion 122 can be formed at the location where the textured formation portion 122 is provided.

  Since the compression part 10 constituting the hinge mechanism 7 is formed by compressing and crushing the resin P2 with the compression formation part 121 constituting the hinge mechanism formation part 119, a part of the resin P2 crushed by the compression formation part 121 is partly formed. It is pushed out to the region of the standing wall forming portion 120 provided at both ends of the compression forming portion 121. Since the standing wall forming portion 120 includes the wrinkle-free forming portion 123, the resin P2 extruded from the compression forming portion 121 can be blocked by the wrinkle-free forming portion 123. As a result, generation of wrinkles due to the resin P2 extruded from the compression forming portion 121 can be suppressed.

  Further, in the cavity 116 of the split mold 32, as shown in FIG. 6, a shoulder wall forming portion 115 for forming a shoulder wall 9 and a standing wall 8 are formed at a location where the peripheral wall 4 of the laminated panel 1 is formed. A standing wall forming portion 120 for forming and a pinch-off portion 118 for forming the parting line PL, and by clamping the two divided molds 32, the shoulder wall 9, the standing wall 8, A peripheral wall 4 having a parting line PL can be formed. Since the standing wall forming portion 120 includes the wrinkle-formed portion 122 and the wrinkle-free portion 123, the wrinkle-free portion 12 corresponding to the wrinkle-free portion 123 is provided at the place where the wrinkle-free portion 123 is provided. It is possible to form the standing wall 8 having the embossed portion 11 corresponding to the embossed portion 122 at the location where the embossed portion 122 is provided.

  The parting line PL constituting the peripheral wall 4 is formed by sandwiching and compressing the resin P2 by sandwiching the resin P2 between the pinch-off portions 118, so that a part of the resin P2 crushed by the pinch-off portions 118 is connected to the pinch-off portions 118. It will be pushed out into the area of the forming part 120. Since the standing wall forming portion 120 includes the wrinkle-free forming portion 123, the resin P2 extruded from the pinch-off portion 118 can be blocked by the wrinkle-free forming portion 123. As a result, generation of wrinkles due to the resin P2 extruded from the pinch-off portion 118 can be suppressed.

  Through the above steps, the laminated panel 1 in which the core material 6, the resin P2, and the decorative member 5 are laminated is completed.

  Next, as shown in FIG. 19, the two split molds 32 are opened, the cavity 116 is separated from the completed laminated panel 1, and the burrs formed around the parting line PL are removed. This completes the formation of the laminated panel 1 having a texture pattern on the outer surface.

  The laminated panel 1 of the present embodiment is configured to have at least a wrinkle-free portion 12 on a standing wall 8 constituting the hinge mechanism 7 and a standing wall 8 constituting the peripheral wall 4. As a result, it is possible to form the laminated panel 1 having excellent design with few wrinkles on the outer surface of the laminated panel 1.

<Operation / Effect of Laminated Panel 1 of this Embodiment>
As described above, when the laminated panel 1 of the present embodiment is molded, a texture pattern is not formed on at least a part of the standing wall forming portion 120 for forming the standing wall 8 rising from the back wall 3 toward the front wall 2. For this reason, the resin P2 is clamped with the split mold 32 provided with the non-wrinkled portion 123, and the wrinkle-free portion in which the wrinkle pattern is not formed is provided. The laminated panel 1 including the standing wall 8 having the part 12 is formed.

  As a result, it is possible to obtain the laminated panel 1 including the wrinkle-free portion 12 in which the wrinkle pattern is not formed on at least a part of the standing wall 8.

  Since the laminated panel 1 of the present embodiment has the wrinkle-free portion 12 in at least a part of the standing wall 8, it is possible to prevent the resin P2 from being displaced during molding and to suppress the generation of wrinkles on the standing wall 8. it can.

  In the above embodiment, the core material 6 is formed using the molten cylindrical resin P1. However, the resin P1 for molding the core material 6 is not limited to the cylindrical resin P1, and can be molded using a molten tubular or sheet-shaped resin P1 alone.

  In the above embodiment, it is assumed that the resin P2 is sucked and molded into the divided mold 32 by using a vacuum forming method, but it is also possible to use blow molding together.

  Further, in the above embodiment, it is assumed that the laminated panel 1 is formed using the molten sheet-like resin P2, but is not limited to the sheet-like resin P2, and is formed using the tubular resin P2. It is also possible to do.

  Further, in the above embodiment, the core material 6 in which a part of the core material 6 is compressed and thinned to form the hinge portion 7a is preliminarily molded, and the core material 6 and the front wall 2 and the back wall 3 of the laminated panel 1 are formed. A laminated panel 1 having a hinge mechanism 7 including a hinge portion 7a formed of the core material 6 by clamping the molten resin P2 to be configured with a split mold 32 to weld the core material 6 and the resin P2. Is molded. However, when the core material 6 and the resin P2 are clamped with the split mold 32 without previously molding the core material 6 on which the hinge portion 7a is formed, a part of the core material 6 with the split mold 32 is used. It is also possible to construct such that the hinge portion 7a is formed by compressing and thinning. In this case, a part of the core material 6 is compressed and thinned by the hinge mechanism forming part 119 to form the hinge part 7a.

  In the above embodiment, the decorative member 5 is attached to the upper surface of the front wall 2 as the laminated panel 1. However, it is possible to omit the decorative member 5 and expose the upper surface of the front wall 2 as it is. In this case, it is preferable to form a texture pattern on the surface of the front wall 2 from which the decorative member 5 is omitted.

  Moreover, in the said embodiment, the core material 6 has demonstrated the solid structure as an example. However, the core material 6 can also be provided with a plurality of depressions in the core material 6 as shown in FIG. 4 of Patent Document 2 (WO2009 / 136489), for example. In addition, as shown in FIG. 5 of Patent Document 2, a through hole can be provided in the core material 6. That is, the configuration of the core material 6 is not limited to a solid configuration, and a part of the core material 6 can be made hollow or a part of the core material 6 can be made solid. A hollow part or a solid part can be appropriately provided in the core member 6 according to the position of the hinge part 7a. In addition, since the core material 6 of this embodiment forms the hinge part 7a, it is preferable to provide holes, such as a hollow part, in the circumference | surroundings. As a result, even when the hinge portion 7a is formed using the resin P1, it is possible to ensure a resin escape area at the formed portion, and thus it is possible to prevent the occurrence of resin accumulation. A reinforcing material such as reinforcement may be disposed on the core material 6. It is also possible to adopt a configuration in which the core material 6 is not provided.

(Second Embodiment)
Next, a second embodiment will be described.

  In the first embodiment, as shown in FIG. 6, a wrinkle-free forming portion 123 is provided in the standing wall forming portion 120 that forms the standing wall 8 of the peripheral wall 4 of the laminated panel 1, and the resin P2 extruded from the pinch-off portion 118 is used. The wrinkle-free forming part 123 is used to block it. Thereby, it is possible to suppress generation of wrinkles due to the resin P2 pushed out from the pinch-off portion 118.

  That is, in the first embodiment, by providing the wrinkle-free portion 12 on the standing wall 8 of the peripheral wall 4, it is possible to suppress the generation of wrinkles on the standing wall 8 and to form the standing wall 8 with less wrinkles. . However, in the first embodiment, since it is assumed that the wrinkle-free portion 12 is provided on the standing wall 8, a wrinkle pattern cannot be formed on all surfaces of the standing wall 8.

  For this reason, in the second embodiment, as shown in FIG. 20, the shape of the shoulder wall forming portion for forming the shoulder wall of the peripheral wall 4 of the laminated panel 1 is deformed, and a curve with an angle R of 1.5 mm. A curved shoulder wall forming portion 302 for forming a curved shoulder wall 301 having a shape is provided. FIG. 20 shows a configuration example around the pinch-off portion 118 forming the peripheral wall 4, (a) shows a state when the divided mold 32 is clamped, and (b) shows the divided mold 32. The state when the resin P2 is cooled after clamping is shown, and (c) shows an example of the configuration around the peripheral wall 4 after molding.

  In the present embodiment, a curved shoulder wall forming portion 302 for forming a curved shoulder wall 301 having a curved shape with an angle R of 1.5 mm, a standing wall forming portion 120 for forming the standing wall 8, and a parting line PL A pinch-off part 118 for forming is provided in the split mold 32, the resin P2 constituting the front wall 2 and the back wall 3 is clamped by the split mold 32, and the corner wall R of the laminated panel 1 is corner R A curved shoulder wall 301 having a length of 1.5 mm is provided, and the curved shoulder wall 301 and the standing wall 8 are connected by a parting line PL.

  By providing the curved shoulder wall forming portion 302 for forming the curved shoulder wall 301 having an angle R of 1.5 mm, the force for pushing down the resin P2 pushed out from the pinch-off portion 118 to the standing wall forming portion 120 side can be reduced. it can. As a result, it is possible to suppress the resin P2 pushed out from the pinch-off part 118 from shifting to the standing wall forming part 120 side. The resin P2 pushed out from the pinch-off part 118 is bent at the spot and remains in the vicinity of the pinch-off part 118, so that it does not become a ridge and remain on the outer surface of the standing wall 8. For this reason, a texture pattern can be formed on all surfaces of the standing wall 8 constituting the peripheral wall 4.

  As shown in FIG. 7, a shoulder wall forming portion 115 for forming a shoulder wall that includes a curved portion having an angle R of 8.0 mm and a straight portion is provided in the split mold 32. In this case, as shown in FIG. 7A, when the resin P2 constituting the front wall 2 and the back wall 3 is clamped by the split mold 32, the resin P2 pushed out from the pinch-off portion 118 is used as the standing wall forming portion. The force to push down to the 120 side becomes stronger. This is because the shoulder wall forming portion 115 is provided with a linear shape forming portion for forming a shoulder wall of a linear shape portion, and the linear shape forming portion is located substantially on the same line as the standing wall forming portion 120. It is. When the straight shape forming portion of the shoulder wall forming portion 115 and the standing wall forming portion 120 are located on the same line, the flow of the resin P2 between the straight shape forming portion of the shoulder wall forming portion 115 and the standing wall forming portion 120 When the resin P2 constituting the front wall 2 and the back wall 3 is clamped with the split mold 32, the force to push down the resin P2 pushed out from the pinch-off portion 118 to the upright wall forming portion 120 side becomes strong. End up.

  In addition, since only the wrinkle formation portion 122 is provided in the standing wall formation portion 120, the resin P2 pushed out from the pinch-off portion 118 slides on the uneven surface that forms the wrinkle formation portion 122, and the wrinkle formation portion 122 The excess resin P2 floats up, a gap 200 is formed between the embossed portion 122 and the resin P2, and the resin P2 is bent. As a result, the bent portion remains as the ridge 201 on the outer surface of the standing wall 8.

  In the present embodiment, in order to solve the problem of FIG. 7, as shown in FIG. 20, a curved shoulder wall forming portion 302 for forming a curved shoulder wall 301 having an angle R of 1.5 mm is provided in the split mold 32. The force for pushing down the resin P2 pushed out from the pinch-off part 118 to the standing wall forming part 120 side is reduced. As a result, it is possible to suppress the resin P2 pushed out from the pinch-off part 118 from shifting to the standing wall forming part 120 side and to prevent generation of wrinkles. In the present embodiment, since the curved shoulder wall forming portion 302 for forming the curved shoulder wall 301 having an angle R of 1.5 mm is provided in the split mold 32, the curved shoulder wall forming portion 302 and the standing wall formation are formed. It is possible to prevent the portion 120 from being located on the same line. Since the curved shoulder wall forming portion 302 and the standing wall forming portion 120 having a curved shape are not located on the same line, the resin P2 hardly flows between the curved shoulder wall forming portion 302 and the standing wall forming portion 120. In addition, when the resin P2 constituting the front wall 2 and the back wall 3 is clamped by the split mold 32, the force for pushing down the resin P2 pushed out from the pinch-off part 118 to the standing wall forming part 120 side can be weakened.

  In this embodiment, if the resin P2 constituting the front wall 2 side is sucked into the divided mold 32 before the resin P2 constituting the back wall 3 side, the front wall 2 side is constituted. Since the resin P2 hardens first, when the resin P2 is crushed and compressed by the pinch-off part 118, the resin P2 constituting the front wall 2 side does not move so much, and the resin P2 constituting the back wall 3 side is pinched off. The part 118 is pushed out. However, in this embodiment, as shown in FIG. 20, a curved shoulder wall forming portion 302 for forming a curved shoulder wall 301 having an angle R of 1.5 mm is provided in the split mold 32 and pushed out from the pinch-off portion 118. The force that pushes down the resin P2 toward the standing wall forming portion 120 side is reduced. As a result, it is possible to suppress the resin P2 pushed out from the pinch-off part 118 from shifting to the standing wall forming part 120 side and to prevent generation of wrinkles. Further, the resin P2 pushed out from the pinch-off part 118 does not shift to the standing wall forming part 120 side, bends on the spot, and remains in the vicinity of the pinch-off part 118, so that it remains as a ridge on the outer surface of the standing wall 8. Can be prevented.

  As shown in FIG. 20, when a curved shoulder wall forming portion 302 for forming a curved shoulder wall 301 having an angle R of 1.5 mm is provided in the split mold 32, the position of the curved shoulder wall forming portion 302 is It is preferable to form the laminated panel 1 by disposing the decorative member 5 on the surface. Since the curved shoulder wall forming portion 302 has a small angle R of 1.5 mm, the decorative member 5 is disposed on the curved shoulder wall forming portion 302, and the decorative member 5 is applied even if the arranged decorative member 5 is vacuum-suctioned from the split mold 32. 5 cannot be shaped into the shape of the curved shoulder wall forming portion 302, and a gap 303 can be formed between the curved shoulder wall forming portion 302 and the decorative member 5. As a result, even if the resin P2 constituting the front wall 2 side is first sucked into the divided mold 32 and hardened earlier than the resin P2 constituting the back wall 3 side, it is pushed out from the pinch-off portion 118. Resin P2 can be moved by the gap 303 formed above. As a result, it is possible to suppress the resin P2 pushed out from the pinch-off part 118 from shifting to the standing wall forming part 120 side, and to prevent generation of wrinkles.

  In FIG. 20, a curved shoulder wall forming portion 302 for forming a curved shoulder wall 301 having an angle R of 1.5 mm is provided in the split mold 32, but the value of the corner R is 1.5 mm. Without limitation, if the value of the angle R is 3.0 or less, the gap 303 described above can be easily formed. For this reason, the curved shoulder wall forming portion 302 for forming the curved shoulder wall 301 having an angle R of 3.0 mm or less is provided in the split mold 32, so that all the surfaces of the standing wall 8 constituting the peripheral wall 4 are embossed. Even if a pattern is formed, wrinkles can be prevented from occurring.

  In the above embodiment, it is assumed that the curved shoulder wall 301 having a curved shape with an angle R of 3.0 mm or less and the standing wall 8 are connected by the parting line PL. However, if it has a curved shoulder wall 301 composed of a curved portion in the range from the periphery of the front wall 2 to the parting line PL, the resin P2 at the time of molding as in the above-described embodiment Can be prevented, and the occurrence of wrinkles on the standing wall 8 around the back wall 3 can be suppressed. That is, if the range from the periphery of the front wall 2 to the parting line PL can be configured only by the curved shoulder wall 301 configured by a curved shape, the curved shape of the curved shoulder wall 301 is not particularly limited, It is possible to have a curved shoulder wall 301 having an arbitrary curved shape. For example, a curved shoulder wall 301 having a curved shape with an angle R larger than 3.0 can be configured, and the curved shoulder wall 301 and the standing wall 8 can be configured to be connected by a parting line PL. is there. However, in view of forming the gap 303, it is preferable to have a curved shoulder wall 301 having a curved shape with an angle R of 3.0 or less.

<Operation / Effect of Laminated Panel 1 of this Embodiment>
Thus, when the laminated panel 1 of the present embodiment is molded, the curved shoulder wall forming portion 302 for forming the curved shoulder wall 301 having a curved shape is provided in the split mold 32, and the curved shoulder wall forming portion 302 is formed. The resin P2 is clamped with the split mold 32 provided with a curved shoulder wall 301 at a location corresponding to the curved shoulder wall forming portion 302, and the curved shoulder wall 301 and the standing wall 8 are parting lines PL. The laminated panels 1 connected by the step are formed.

  Thereby, it is possible to obtain the laminated panel 1 having the curved shoulder wall 301 having a curved shape with respect to the peripheral wall 4, and the curved shoulder wall 301 and the standing wall 8 being connected by the parting line PL.

  Since the laminated panel 1 of the present embodiment has a curved shoulder wall 301 having a curved shape with respect to the peripheral wall 4, and the curved shoulder wall 301 and the standing wall 8 are connected by a parting line PL. It is possible to prevent the resin P2 from being displaced during molding and prevent wrinkles from occurring on the standing wall 8.

  In the above embodiment, it is assumed that the curved shoulder wall 301 having a curved shape and the standing wall 8 are connected by the parting line PL. However, instead of providing the curved shoulder wall 301 with a curved shape on the peripheral wall 4, a linear straight shoulder wall is provided on the peripheral wall 4, and the linear straight shoulder wall and the standing wall 8 are parting lines PL. It is also possible to configure such that they are connected with each other. However, in this case, the straight shoulder wall and the standing wall 8 are not located on the same line, and the straight shoulder wall needs to be configured to be inclined toward the inside of the laminated panel 1 with respect to the line of the standing wall 8. is there. In this case, the inclination angle α between the standing wall 8 and the straight shoulder wall is preferably inclined by 20 degrees or more. The fact that the straight shoulder wall and the standing wall 8 are inclined means that the straight shoulder wall forming portion for forming the straight shoulder wall and the standing wall forming portion 120 for forming the standing wall 8 are inclined. means. Since the standing wall forming part 120 and the straight shoulder wall forming part are inclined, it becomes difficult for the resin P2 to flow between the standing wall forming part 120 and the straight shoulder wall forming part. It is possible to weaken the force of pushing down the resin P2 pushed out from the pinch-off part 118 toward the standing wall forming part 120 when the resin P2 constituting the mold is clamped by the split mold 32.

  In FIG. 20, only the wrinkle-forming portion 122 is provided in the standing wall forming portion 120 that forms the peripheral wall 4, and the wrinkled portion 11 corresponding to the wrinkle-forming portion 122 is formed on the entire surface of the standing wall 8 of the peripheral wall 4. The grain pattern is formed on the entire surface of the standing wall 8 of the surrounding wall 4. However, as in the first embodiment, it is also possible to provide the wrinkle-free portion 123 on at least a portion of the standing wall forming portion 120 and to form the wrinkle-free portion 12 on at least a portion of the standing wall 8 of the peripheral wall 4. is there. In the configuration shown in FIG. 20, by providing the wrinkle-free forming portion 123 at least in part of the standing wall forming portion 120, the contact area with the resin P2 disposed on the wrinkle-free forming portion 123 is increased, and the frictional resistance is increased. Therefore, it is possible to further reduce the force of pushing down the resin P2 pushed out from the pinch-off part 118 to the standing wall forming part 120 side.

(Third embodiment)
Next, a third embodiment will be described.

  In the first embodiment, as shown in FIG. 4, a resin P2 extruded from the compression forming portion 121 is provided with a wrinkle-free forming portion 123 provided on the standing wall forming portion 120 that forms the standing wall 8 of the hinge mechanism 7 of the laminated panel 1. Is blocked by the wrinkle-free portion 123. Thereby, it is possible to suppress the generation of wrinkles due to the resin P2 extruded from the compression forming portion 121.

  That is, in the first embodiment, by providing the wrinkle-free portion 12 on the standing wall 8 of the hinge mechanism 7, it is possible to form the standing wall 8 with less wrinkles.

  In the third embodiment, as shown in FIG. 21, the shape of the hinge mechanism forming part 119 for forming the hinge mechanism 7 of the laminated panel 1 is deformed, the protruding wall 401 is provided on the standing wall forming part 120, and compression formation is performed. The resin P2 extruded from the portion 121 is blocked by the convex portion 401. Thereby, it is possible to suppress the generation of wrinkles due to the resin P2 extruded from the compression forming portion 121. FIG. 21 shows a configuration example around the hinge mechanism forming portion 119 for forming the hinge mechanism 7, (a) shows a state when the divided mold 32 is clamped, and (b) shows a divided state. The state when the resin P2 is cooled after the mold 32 is clamped is shown, and (c) shows a configuration example around the hinge mechanism 7 after molding.

  In the present embodiment, as shown in FIG. 21, the shape of the hinge mechanism forming portion 119 for forming the hinge mechanism 7 is changed. Since the hinge mechanism forming part 119 of the present embodiment includes the standing wall forming part 120 having the convex part 401 and the compression forming part 121, the standing wall 8 having the concave part 407 corresponding to the shape of the convex part 401. And the compression mechanism 10 can be formed. In addition, the standing wall 8 shown in FIG. 21 is formed as shown in FIG. 21 (b) by forming a gap between the convex portion 401 and the resin P2, and cooling the resin P2 in the state where the gap is generated. It has a recess 402 with a flange. However, as shown in FIG. 21A, the standing wall 8 of the present embodiment does not generate a gap between the convex portion 401 and the resin P2, and the resin P2 is cooled while the resin P2 protrudes outward. The concave portion 407 is formed on the premise, and the concave portion 407 may be formed with a ridge as shown in FIG.

  The convex portion 401 provided on the standing wall forming portion 120 is preferably provided such that the angle θ formed by the convex direction of the convex portion 401 and the mold clamping direction of the split mold 32 is an acute angle. Thereby, even if the protruding portion 401 is provided on the standing wall forming portion 120, the protruding portion 401 can be easily pulled out from the resin P2 after the divided mold 32 is clamped. In view of easy removal of the convex portion 401, the convex direction of the convex portion 401 is preferably the mold clamping direction. Thus, the convex portion 401 can be easily removed from the resin P2 after the divided mold 32 is clamped.

  The standing wall forming portion 120 of the present embodiment includes a first standing wall forming portion 403 and a second standing wall forming portion 404, and a connecting portion between the first standing wall forming portion 403 and the second standing wall forming portion 404 is It is bent, and the convex portion 401 is formed by the bent portion.

  The first standing wall forming part 403 and the second standing wall forming part 404 constituting the standing wall forming part 120 of the present embodiment are not located on the same straight line, and the first standing wall forming part 403 and the second standing wall forming part Since 404 is inclined at a predetermined angle, the connecting portion between the first standing wall forming portion 403 and the second standing wall forming portion 404 is bent, and the first standing wall forming portion 403 and the second standing wall forming portion are bent. The convex portion 401 is formed by a connecting portion with 404.

  For this reason, the standing wall 8 formed by the standing wall forming part 120 includes a first standing wall 405 formed by the first standing wall forming part 403 and a second standing wall 406 formed by the second standing wall forming part 404. And a concave portion 407 formed by the convex portion 401. Further, the standing wall 8 of the present embodiment is configured to have a recess 407 that is recessed toward the inside of the laminated panel 1 at a predetermined position. The standing wall 8 of the present embodiment is configured to include a first standing wall 405 and a second standing wall 406, and a connecting portion between the first standing wall 405 and the second standing wall 406 is bent, The bent portion constitutes the concave portion 407. The first standing wall 405 and the second standing wall 406 that constitute the standing wall 8 of the present embodiment are not located on the same straight line, and the first standing wall 405 and the second standing wall 406 are inclined at a predetermined angle. Therefore, the connecting portion between the first standing wall 405 and the second standing wall 406 is bent.

  Since the standing wall 8 of the present embodiment has a concave portion 407 corresponding to the shape of the convex portion 401, the occurrence of wrinkles can be prevented. Further, in the present embodiment, since the convex portion 401 is configured by the connecting portion of the first standing wall forming portion 403 and the second standing wall forming portion 404, the standing wall 8 has a portion corresponding to the convex portion 401. A recessed portion 407 that is recessed inside the laminated panel 1 is formed. However, since the concave portion 407 is formed as a polygonal line and the polygonal line and the concave portion 407 overlap each other, the concave portion 407 formed on the standing wall 8 can be made inconspicuous. Since the standing wall 8 of the present embodiment is intentionally provided with the concave portion 407 corresponding to the shape of the convex portion 401, it is possible to prevent the generation of wrinkles due to the resin shift, and even if wrinkles occur, Since it occurs in the vicinity, the occurrence of wrinkles at unspecified positions can be avoided.

  In the present embodiment, the first standing wall forming portion 403 is configured to have a wrinkled presence forming portion 122 for forming a wrinkle pattern, and the second rising wall forming portion 404 is not formed with wrinkles not forming a wrinkle pattern. It is preferable to include the portion 123. As a result, the resin P2 extruded from the compression forming part 121 is blocked by the wrinkle-free forming part 123, and even if it is not blocked by the wrinkle-free forming part 123, the resin P2 that has not been blocked is projected. It can be further blocked by the portion 401, and the resin P2 pushed out from the compression forming portion 121 can be prevented from exceeding the convex portion 401. As a result, the generation of wrinkles can be further suppressed.

  In the present embodiment, the standing wall forming portion 120 has a convex portion 401, and the resin P2 pushed out from the compression forming portion 121 is blocked by the convex portion 401. For this reason, the first standing wall forming portion 403 and the second standing wall forming portion 404 can be configured to have the wrinkled presence forming portion 122. As a result, a texture pattern can be formed on all surfaces other than the concave portion 407 of the standing wall 8. As in the present embodiment, the raised panel 401 is provided on the standing wall forming portion 120 to prevent the resin P2 from being displaced at the time of molding, and the laminated panel 1 is formed with a texture pattern on all surfaces other than the recessed portion 407 of the standing wall 8. Can be molded. In addition, the shape of the convex part 401 is not specifically limited, It can comprise with arbitrary shapes. For example, an arbitrary shape such as a circular shape, a triangular shape, or a trapezoidal shape can be used. Further, the convex direction of the convex portion 401 can also be configured in an arbitrary direction. However, it is preferable that the convex direction is a direction in which the convex portion 401 can be easily removed from the resin P2 after the divided mold 32 is clamped.

  The second standing wall forming portion 404 that defines the position of the convex portion 401 is at least from a position connected to the compression forming portion 121 to a position separated by a distance corresponding to the thickness of the resin P2 constituting the back wall 3. Preferably it is formed. As shown in FIG. 12, the thickness of the resin P2 constituting the back wall 3 is the largest among the resins P2 of the back wall 3 before compression forming the compressed portion 10 extruded from the T die 28. It means the thickness of the thick part. When the thickness of the resin P2 constituting the back wall 3 is large, the amount of the resin P2 extruded from the compression forming portion 121 increases, and wrinkles are likely to occur on the standing wall 8. The extrusion amount of the resin P2 extruded from the compression forming unit 121 is proportional to the thickness of the resin P2 constituting the back wall 3. For this reason, the width of the second standing wall forming portion 404 from the position connected to the compression forming portion 121 to the position connecting to the first standing wall forming portion 403 is the thickness of the resin P2 constituting the back wall 3. It is preferable that the distance be equal to or greater than the distance. Thereby, the resin P2 pushed out from the compression forming part 121 can be suppressed by the second standing wall forming part 404, and the generation of wrinkles can be suppressed.

  In addition, in FIG. 21, the structural example which provided the convex part 401 in the standing wall formation part 120 for forming the standing wall 8 which comprises the hinge mechanism 7 was demonstrated. However, as shown in FIG. 22, a protruding portion 401 is provided on the standing wall forming portion 120 for forming the standing wall 8 constituting the peripheral wall 4, and the resin P <b> 2 extruded from the pinch-off portion 118 is blocked by the protruding portion 401. It is also possible to do so. Thereby, the resin P2 pushed out from the pinch-off portion 118 can be blocked by the convex portion 401, and the generation of wrinkles can be suppressed.

  The standing wall forming portion 120 shown in FIG. 22 includes a first standing wall forming portion 403 and a second standing wall forming portion 404, and is a connecting portion between the first standing wall forming portion 403 and the second standing wall forming portion 404. Convex part 401 is configured. Therefore, the standing wall 8 formed by the standing wall forming part 120 includes a first standing wall 405 formed by the first standing wall forming part 404 and a second standing wall 406 formed by the second standing wall forming part 404. And a concave portion 407 formed by the convex portion 401. For this reason, the standing wall 8 of the present embodiment is configured to have the concave portion 407 at a predetermined position. Note that the standing wall 8 shown in FIG. 22 is formed as shown in FIG. 22 (b), in which a gap is generated between the convex portion 401 and the resin P2, and the resin P2 is cooled while the gap is generated. It has a recess 402 with a flange. However, as shown in FIG. 22A, the standing wall 8 of this embodiment does not generate a gap between the convex portion 401 and the resin P2, and the resin P2 is cooled while the resin P2 protrudes outward. The concave portion 407 is formed on the premise, and the concave portion 407 may be formed with a ridge as shown in FIG.

  Since the standing wall 8 shown in FIG. 22 has a concave portion 407 corresponding to the shape of the convex portion 401, generation of wrinkles can be prevented. Moreover, since the convex part 401 is comprised in the connection part of the 1st standing wall formation part 403 and the 2nd standing wall formation part 404, the standing wall 8 has a location corresponding to the convex part 401 at the location of the laminated panel 1. A concave portion 407 recessed inward is formed. However, since the concave portion 407 is formed as a polygonal line and the polygonal line and the concave portion 407 overlap each other, the concave portion 407 formed on the standing wall 8 can be made inconspicuous. Since the standing wall 8 of the present embodiment is intentionally provided with the concave portion 407 corresponding to the shape of the convex portion 401, it is possible to prevent the generation of wrinkles due to the resin shift, and even if wrinkles occur, Since it occurs in the vicinity, the occurrence of wrinkles at unspecified positions can be avoided.

  Note that the first standing wall forming portion 403 shown in FIG. 22 has a wrinkled presence forming portion 122 for forming a wrinkled pattern, and the second rising wall forming portion 404 has no wrinkled pattern that does not form a wrinkled pattern. It is preferable to include the formation portion 123. As a result, the resin P2 extruded from the pinch-off portion 118 is blocked by the wrinkle-free forming portion 123, and even if it is not blocked by the wrinkle-free forming portion 123, the resin P2 that has not been blocked is convex. It can be further blocked by 401, and the resin P2 pushed out from the pinch-off portion 118 can be prevented from exceeding the convex portion 401. As a result, the generation of wrinkles can be further suppressed.

<Operation / Effect of Laminated Panel 1 of this Embodiment>
As described above, when the laminated panel 1 of the present embodiment is formed, the protruding wall 401 is provided on the standing wall forming portion 120 for forming the standing wall 8 rising from the back wall 3 toward the front wall 2. By clamping the resin P2 with the split mold 32 provided with 401, the laminated panel 1 including the standing wall 8 having the concave portion 407 corresponding to the shape of the convex portion 401 at a position corresponding to the convex portion 401 is formed.

  As a result, the laminated panel 1 having the recessed portion 407 in the standing wall 8 can be obtained.

  Since the laminated panel 1 of the present embodiment has the recess 407 in the standing wall 8, it is possible to prevent the resin P2 from being displaced during molding and to prevent wrinkles from occurring on the standing wall 8. Even if wrinkles occur, they occur in the vicinity of the recess 407, so that wrinkles can be prevented from occurring at unspecified positions.

  The above-described embodiment is a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiment alone, and various modifications are made without departing from the gist of the present invention. Implementation is possible.

  For example, the laminated panel 1 of the above-described embodiment has been described as an example in which it is used as a partition plate for a trunk or a floor material in an automobile or the like. However, the laminated panel 1 of the above embodiment is not limited to a member for an application such as an automobile, and can also be used as a member for various applications.

1 Laminated panel (molded product)
2 Front wall 3 Back wall 4 Peripheral wall 5 Cosmetic member 6 Core material 7 Hinge mechanism 7a Hinge part 8 Standing wall 9 Shoulder wall 10 Compression part 11 Wrinkle part (concave part)
12 No wrinkles (no irregularities)
P1 resin 40 extrusion head 41 split mold 42 hinge forming section 44 cavity P2 resin 28 T die 30 roller 32 split mold 115 shoulder wall forming section 116 cavity 118 pinch-off section 119 hinge mechanism forming section 120 standing wall forming section 121 compression forming section 122 Wrinkle formation part (unevenness formation part)
123 Wrinkle-free part (uneven part-free part)
128 Frame member 301 Curved shoulder wall 302 Curved shoulder wall forming part 401 Convex part 402 Concave part with concave part (concave part)
407 Concave part 403 1st standing wall formation part 404 2nd standing wall formation part 405 1st standing wall 406 2nd standing wall

Claims (6)

A hinge part is formed by forming the compression part, and a molded product in which minute irregularities are formed on at least one outer surface of the front wall and the back wall,
The one wall on which the minute irregularities are formed has a standing wall that stands up from the wall toward the other wall,
At least a part of the standing wall is provided with an uneven portion where the minute unevenness is not formed ,
One end of the standing wall is connected to a compression part in which one wall is compressed in the hinge part,
The uneven portion is a molded product connected to at least the compression portion . The molded product according to claim 1 , wherein the standing wall has a concave portion that is recessed toward the inside of the molded product. The molded article according to claim 2 , wherein the uneven portion is formed from a position connected to the compression portion to a position of the recess. The molten resin is sucked with a mold and clamped, and a compression part is formed to form a hinge part, and at least one outer surface of the front wall and the back wall has minute irregularities formed. A molding method for molding a molded article,
The mold for forming the micro unevenness has an unevenness non-forming portion for not forming the micro unevenness in at least a part of the standing wall forming portion for forming a standing wall rising from one wall toward the other wall. Have
A molding method in which the resin is sucked with the mold and shaped into a cavity shape, and then clamped. The shaping | molding method of Claim 4 which has a convex part in the said standing wall formation part. The mold for forming the minute unevenness has a compression forming portion for compressing the resin to form a compressed portion, and the standing wall forming portion and the compression forming portion are connected to each other, and the unevenness is not formed. The forming method according to claim 5 , wherein the forming portion is provided between the convex portion and the compression forming portion.

Images